PMID- 19467691
OWN - NLM
STAT- MEDLINE
DCOM- 20091103
LR  - 20191210
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 76
IP  - 6
DP  - 2009 Aug
TI  - Evaluating the fate of three HCHs in the typically agricultural environment of 
      Liaoning Province, China.
PG  - 792-8
LID - 10.1016/j.chemosphere.2009.04.050 [doi]
AB  - The LRBPOP model has been developed to calculate the long-term fate of alpha-, 
      beta-, and gamma-hexachlorocyclohexane (HCH) in the lower reach of Liaohe River 
      basin, a typically agricultural environment in Liaoning Province, China. For this 
      purpose, seasonally existent crop compartment, time-variant emission rates, and 
      seasonal model parameters are provided in the model calculation. Besides, crop 
      processing factor (PF) is also introduced to calculate the concentration in 
      foodstuff produced by crop. The fate of three HCHs from 1952 to 2011 is 
      calculated. Sensitivity analysis, uncertainty analysis, and model comparison are 
      conducted to evaluate the model. The sensitivity analysis indicates that the 
      LRBPOP model is most sensitive to air and water advection, HCHs applied rate, and 
      reaction half-life in soil. Model comparison shows that absolute levels, 
      partitioning between media, temporal trends, and ratios between HCHs reproduce 
      well within an order of magnitude, often within a factor of 3. The predicted 
      results indicate that the study area has been subject to severe contamination of 
      HCHs in the early of 1980s, and the residues of three HCHs decrease largely with 
      different vanishing rates after 1983. According to modeling results, the 97.5th 
      percentiles of SigmaHCH residues in surface water, agricultural soil, and crop 
      food are lower than the corresponding maximum residue limits (MRLs) in 2008, 
      2005, and 2005, respectively.
FAU - Liu, Zhenyu
AU  - Liu Z
AD  - School of Environmental and Biological Science and Technology, Key Laboratory of 
      Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian 
      University of Technology, Dalian 116024, China.
FAU - Chen, Shuo
AU  - Chen S
FAU - Quan, Xie
AU  - Quan X
FAU - Yang, Fenglin
AU  - Yang F
LA  - eng
PT  - Evaluation Study
PT  - Historical Article
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20090520
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Environmental Pollutants)
RN  - 0 (Insecticides)
RN  - 59NEE7PCAB (Hexachlorocyclohexane)
SB  - IM
MH  - Agriculture
MH  - China
MH  - Environmental Pollutants/*analysis/chemistry
MH  - Environmental Restoration and Remediation
MH  - Hexachlorocyclohexane/*analysis/chemistry/history
MH  - History, 20th Century
MH  - History, 21st Century
MH  - Insecticides/*analysis/chemistry
MH  - Rivers/chemistry
EDAT- 2009/05/27 09:00
MHDA- 2009/11/05 06:00
CRDT- 2009/05/27 09:00
PHST- 2009/01/04 00:00 [received]
PHST- 2009/04/16 00:00 [revised]
PHST- 2009/04/22 00:00 [accepted]
PHST- 2009/05/27 09:00 [entrez]
PHST- 2009/05/27 09:00 [pubmed]
PHST- 2009/11/05 06:00 [medline]
AID - S0045-6535(09)00542-6 [pii]
AID - 10.1016/j.chemosphere.2009.04.050 [doi]
PST - ppublish
SO  - Chemosphere. 2009 Aug;76(6):792-8. doi: 10.1016/j.chemosphere.2009.04.050. Epub 
      2009 May 20.